Energy efficiency
14.0 J/TH
3,640 W ÷ 260 TH/s
#29 of 99 in the catalog
ASIC miner · Bitdeer Sold by manufacturer: yes
Bitdeer SealMiner A3 Air
An air-cooled Bitcoin ASIC with 260 TH/s at 3,640 W — 14.0 J/TH, among the most efficient air-cooled models in the catalog.
About SealMiner A3 Air
The SealMiner A3 Air is Bitdeer's air-cooled model, released in September 2025. At 14.0 J/TH it ranks #29 of 99 in the catalog by efficiency, and 9th of 48 among air-cooled machines.
At 3.6 kW it needs a data center or a dedicated ventilated room, not a living room. It comes in hashrate variants from 240 to 280 TH/s; this page uses the manufacturer's nominal 260 TH/s.
What the specs add up to
Derived from the specs below, with the formula on every card. Estimates, not a forecast
Electricity used per day
87.4 kWh
3.64 kW × 24 h
31.9 MWh a year
Electricity cost per day
$8.74
87.4 kWh × $0.10 per kWh
Break-even electricity price
$0.090 / kWh
Estimated daily reward ÷ electricity used per day
As of 13 Nov 2026
Built for
Data center
3.64 kW of heat
Home class: up to 50 dB and 1.4 kW, air cooling
Hashrate per kW
71.4 TH/s
260 TH/s ÷ 3.64 kW
SealMiner A3 Air or a digital miner with the same 260 TH/s
Same hashrate, side by side. Scenario: you run the machine yourself, on household electricity. Numbers follow our reward calculator and update daily
BTC price · 13 Nov 2026$70,780
SealMiner A3 Air
Your own machine · 260 TH/s · 14.0 J/TH
- Upfront cost
- Not shownNot in the catalog yet — see the manufacturer's store
- Reward per day (est.)
- 0.00011 BTC≈ $7.83 at the same hashrate
- Running cost per day
- $8.743.64 kW × 24 h × $0.10 per kWh
- Net per day (est.)
- −$0.90At your electricity price
- Delivery and setup
- Shipping, customs, pool setup
- Noise and heat
- 3.64 kW of heat at your place
GoMining digital miner
260 TH/s · 15 J/TH · runs in our data centers
- Upfront cost
- $2,967260 TH × $11.41 per TH
- Reward per day (est.)
- 0.00011 BTC≈ $7.83
- Running cost per day
- $6.99Daily maintenance fee: electricity and service
- Net per day (est.)
- $0.84After the maintenance fee
- Delivery and setup
- Nothing to ship — runs in the app
- Noise and heat
- Nothing at your place
Break-even electricity price for this model: $0.090 per kWh. Above it, electricity costs more than the estimated reward
Estimates, not a forecast. Based on the BTC price, network difficulty and GoMining fees as of 13 Nov 2026; specs as published by the manufacturer. Assumes the machine runs 24/7 with no pool fee; industrial hosting is a different calculation. The digital miner's fee is shown before discounts. Mining rewards vary and are not guaranteed; they may fall below fees. Not investment advice. See terms
SealMiner A3 Air specifications
16 characteristics, each with its source and the date we checked it. Values are nominal, as published by the manufacturer
- Published spec
- Calculated by GoMining
- Not found
- Manufacturer
- Bitdeer
- Model
- SealMiner A3 Air
- Algorithm
- SHA-256 (Bitcoin)
- Energy efficiency
- 14.0 J/TH
- Calculated
- Noise level
- —The manufacturer does not publish it
- Not found · 16 Oct 2026
Similar models
All 100 modelsStart mining without the hardware
Create a digital miner in the GoMining app and get a bonus miner*. First rewards arrive within about 24 hours
Get the app
*The bonus miner is subject to vesting and requires a qualifying transaction. Rewards vary and are not guaranteed. See full terms
Frequently Asked Questions
Questions about this model. For everything else, head to the Help Center